Cutting tool

ABSTRACT

An improved rotary cutting tool for use in cutting or slicing rolls of a material is a combination gouge device for removing waste material formed by a double edged cutting blade and a cutting device for slicing or cutting a core element upon which said material is rolled. Positioning means are provided to insure that the gouging device does not contact the core element during the final slicing operation. In one embodiment of the invention the basic blade has a beveled cutting edge and contains at least one gouging tooth inset into the blade periphery which is extended into its operational position by centrifugal force when the tool is rotated. A limit switch operating in connection with a vane element and a braking means affixed to the driving mechanism for the blade may also be used to stop the rotation of the tool in the desired position for severing the central core element of the roll.

United States Patent 3,148,570 9/1964 Bogert ABSTRACT: An improvedrotary cutting tool for use in cutting or slicing rolls of a material isa combination gouge device for removing waste material lformed by adouble edged cutting blade and a cutting device for slicing or cutting acore element upon which said material is rolled. Positioning means areprovided to insure that the gouging device does not contact the coreelement during the final slicing operation. In one embodiment of theinvention the basic blade has a beveled cutting edge and contains atleast one gouging tooth inset into the blade periphery which is extendedinto its operational position by centrifugal force when the tool isrotated. A limit switch operating in connection with a vane element anda braking means affixed to the driving mechanism for the blade may alsobe used to stop the rotation of the tool in the desired position forsevering the central core element of the roll,

PMENTED AUG 3197:

SHEET 2 [IF 3 John D. A.ie under ATTORNEYS PMENTEUMM; 31971 3596547,

SHEET 3 UF 3 5w] INVENTOR John D.A|ex0nder MARC/115557528 Wmrr ATTOR NEYS lClU'lT'll'lll lG 'lFUlJlli,

GENERAL lDlESCltllPTlON OF lhlVENTlON The general art to which thisinvention relates is that of severing or, as the term is used in theart, slicing rolls of a film or other sheet material into two or moresegments. it is normally the practice in the manufacture of film such aspolyethylene film, polypropylene film, saran" tilm, acrylic film,various other sheet materials and the lilre to prepare the material incontinuous sheets, usually from an extruder laminator, center, and thelike and wind the continuous sheet upon a core of paper, cardboard,etc., in order to enable it to be handled in shipping. As is normal insuch circumstances the roll of material quite often needs to be dividedinto rolls of lesser width before utilization in a commercial operation.

The art of severing these bulk" rolls of material, due to the greatamount of present commercial usage, has developed extensively in thepast few years. For example, machinery and apparatus for performing thisoperation are described and claimed in US. Pat. Nos. 3,083,601 and3,312,130.

In general the prior art machines are directed to an operation wherein alrniie is controllably brought into contact with a roll of rotatingmaterial, the ltnife slicing through the roll and making the desiredcut.

One new development which has particular advantages in the severing ofbulk rolls of material involves the use of two spaced cutting edges,such as twin edged cutting blades or a double-edged cutting blade whichis U-shaped in cross section. Such cutting means is normally adapted tobe rotated against the built roll such that the cutting edges progressthrough the spinning roll of bulls material. it becomes necessary,therefore, for the waste material, that is to say that material betweenthe two incisions, to be removed concurrently with the severing of theroll. The prior art devices for accomplishing this purpose have normallybeen a second whirling blade operating in a position radially opposedfrom the cutting blades. This waste removal blade is usually providedwith teeth that have cutting edges that are parallel to the plane of thebull: roll and thus dig out or gouge the waste material as it is formedby the cutting blades.

This prior apparatus has the disadvantage that at the end of theslicing" operation another provision must be made for severing the coreof cardboard or other supporting material which forms the center of thebull; roll and consequently of the individual slices thereof. it is tothis total operation that the novel cutting and gouging tool of theinstant invention is directed. The apparatus provided hereby effectivelyremoves the waste material between the incisions made by the twincutting blades and, in addition, it is designed to finish the totaloperation by providing a single cutting edge for severing the corematerial at the center of the roll.

This invention relates to a rotary cutting tool. Particularly theinvention relates to a novel cutting and gouging device which is adaptedto be operated in conjunction with twin edged cutting means such as adouble edge U-shaped slicing tool for slicing or severing rolls of amaterial into shorter sections. More particularly the invention relatesto a novel cutting and gouging tool which is adapted to be positioned inthe final stages of the slitting operation to sever the core element ofthe roll cleanly and evenly at the desired position. Still moreparticularly the invention relates to a novel cutting and gougingtoolwhich is adapted with means to position at least one gouging teeth intooperative position upon rotation of the device and is equipped withpositioning means whereby the gouging tooth is placed in an inoperativeposition for severing the core element of the roll of material.

broadly the invention relates to an apparatus designed to sever builtrolls of a material into two or more "slices" of lesser width. Theapparatus includes means for suitably rotating the bull: roll ofmaterial at a controlled rate with the usual supporting structure, etc.Adjustably positioned on the supporting carriage is a rotatable cuttingor slicing means having twin edges, such as a U-shaped cutting blade andmeans for its rotation so that two adjacent incisions are made in thefilm roll when the two are in contact. Positioned at some peripherallyopposed location to the twin edged cutting blades and adapted with meansto impart rotation thereto, is a combination gouging and slicing toolwhich is adapted to remove the "waste" material, that is, the materialbetween the two adjacent incision. This gouging action is brought aboutby one or more gouging teeth which are in operative position when thetool is in rotation and thus gouges or scrapes the strip of wastematerial from the roll as the depth of cut made by the twin cuttingedges or U-shaped edge proceeds. However, when the material iscompletely severed and the concomitant waste is removed, the combinationgouging and cutting tool becomes a single edged cutting tool and thecore material in the center of the bulk roll is sliced with a singleincision in the lrerf formed by the double edged cutting blade, thusleaving a slight extension of the central core beyond the severed edgeof the material as a protective measure.

Specifically the instant invention relates to a novel and unique cuttingand gouging tool to perform the above described waste removal functionand, in addition, to provide a severing mechanism for severing in thedesired position, the core element upon which the material is rolled atthe time of manufacture.

In one embodiment, the novel device of this invention is a single edgedbeveled rotary cutting tool which is provided with at least one gougingtooth and with positioning means for insuring that the gouging toothdoes not contact the inner core element in the final stage of theslicing operation when the core element is being cut.

in embodiments to be hereinafter more specifically described, the novelof this invention utilizes the centrifugal force resulting from rotationof the tool to move gouging teeth mounted on the outer periphery of ablade element into operative position, that is to say, in a position inwhich the cutting edge of the gouging tooth extends radially outwardlyand beyond the outer periphery of the blade edge. In the absence of thecentrifugal force the gouging tooth or teeth are retracted into recessesand in the retracted, or closed, position the cutting edge of thegouging tooth or teeth are in a position inwardly from the outer cuttingedge of the blade. in the latter, nonoperative or closed position, onlythe single beveled edge of the tool of this invention contracts the coreelement to malte a clean incision and to sever the core element in asmooth and efficient manner.

in another embodiment of the invention the positioning means, that isthe means for insuring that only the single beveled cutting edge of thetool contacts the core element in the final stages of the severingoperation, include a limit switch through which the device operateswhich coacts with one or more vanes affixed to the driving mechanism anda bralring mechanism for the blade to cause the blade to come to rest ata desired position.

Operating in the track of the double edged U-shaped main cutting bladeand in the center thereof the improved cutting tool of this inventionresults in a finished roll of material wherein the core element extendsslightly outwardly from the ends of the material of the roll, thusaffording some degree of protection to the severed ends of the material.

in one embodiment the improved cutting and gouging tool of thisinvention may operate in a rotary direction opposite that of the doubleedged main slicing blade and is normally positioned diametricallyopposite the roll of material from the double edged cutting blade. Theposition of the improved tool, however, may be selected around theperiphery of the roll of material at any position which is best suitedfor the particular operation.

it is to be seen from the above general description that the inventiveconcept contemplates a twin incision in a roll of material with meansfor removing the waste material from between the two incision withprovisions for severing the core element at the center of the roll ofmaterial. The twin incisions or cuts may be made, preferably, with aU-shaped rotatable cutting blade or with a pair of spaced rotary cuttingblades. A pair of twin band knife blades may also be used. In someapplications a pair of heated wires will perform the desired function ofsevering a roll of material into two or more portions, particularly filmmaterial such as a polyolefin or the like.

The slicing and gouging means is preferably a rotatable cutting bladewith one or more gouging teeth which serves as a means for removingwaste material from the kerf or from between the twin incisions and forslicing the core element of the roll of material. Other forms of thiscutting and gouging tool are contemplated, however. For example, thetool may be simply an elongated member such as an arm having a tooth atthe end thereof, the thickness of the member being of a dimensionslightly less than the width of the kerf or the distance between thetwin cutting edges, with one edge of such arm member being a knife edgesuch that when it is brought into contact with a rotating core elementit will sever it. A double armed member with a gouging tooth on bothends and with a mounting hole in the center and with at least one armedge being a cutting edge may also be adapted for use.

It is also within the concept of this invention to fabricate the gougingand cutting tool in the form of an endless blade, such as a band sawblade, it being equipped in this instance with at least one gougingtooth, preferably a plurality of gouging teeth, having cutting orgouging surfaces substantially perpen dicular to the direction of travelof the endless blade and operating by means of a driving wheel and anidler wheel, again preferably, but not necessarily in a direction contrato the rotation of the roll of material being cut and between the twocuts. Such an endless blade would have at least one area which comprisesa single-edged slicing means and may be positioned by positioning meanssuch that the slicing edge only contacts the core element when thematerial rolled thereon hasbeen completely severed and the kerf removed.

It is also contemplated that instead of gouging teeth the means forremoving the waste material from the kerf may be pointed projections,such as needles which upon rotational contact with the waste, penetrateand remove it from the kerf.

Other means for positioning the gouging, or waste removing means, willof course become apparent to those skilled in the art. For example,mechanical means for extending the gouging element may be designed suchas a cam and follower arrangement, the cam being fitted to the toolshaft and arranged so that when it is adjusted the follower mechanismextends the gouging mechanism into operative position;

DETAILED DESCRIPTION OF INVENTION The novel cutting tool of thisinvention will be more specifically described by reference to thefollowing drawings in which FIG. 1 represents a side plan view of oneembodiment of the device of this invention;

FIG. 2 is a cross-sectional view of the embodiment illustrated in FIG. 1taken along the line 2-2 of FIG. 1;

FIG. 3 is a side plan view of a second embodiment of the device of theinvention;

FIG. 4 is a top plan (top cross sectional view) of the embodiment ofFIG. 3 taken along the line 4-4 of FIG. 3;

FIG. 5 is a view, partially in perspective, of an embodiment of theinvention showing one means for positioning the gouging and cutting toolfor core slicing;

FIG. 6 is a diagrammatic sketch of an apparatus showing the improveddevice of the invention in position for operation relative to the doubleedge U-shapeo main cutting blade and a roll of material to be severed;and

FIG. 7 is an enlarged view showing a section or slice of a roll ofmaterial which has been severed using the novel inventive device.

Turning now to the drawings, with particular reference to FIGS. 1 and 2,numeral 2 indicates a rotary cutting tool in accordance with oneembodiment of the invention having a beveled cutting edge 4 and anaperture, 6, for fitting on the desired arbor. Positioned in the outerperiphery of the cutting blade 2 and diametrically opposed to each otherare two recesses 10 and 12 which extend downwardly from the cutting edge4 of blade 2. Positioned in recesses 10 and 12 are gouging teeth 14 and16 which are affixed to blade 2 by means of pivots l8 and 20. Forpurposes of illustration, gouging tooth 14 is shown in its open oroperating position and gouging tooth 16 is shown in its closed ornonoperative position. With particular reference to gouging tooth 14 itis seen that cutting edge 22, when the gouging tooth is in the operatingposition, extends radially outwardly from the extreme of the cuttingedge 4 and thus is adapted to cut and remove waste material formed by adouble edged U-shaped cutting blade when properly positioned withrelation thereto. When the device illustrated in FIGS. 1 and 2 isrotated in a counterclockwise direction, centrifugal force causes thegouging teeth 14 and 16 to rotate about their respective pivot pointsinto their operative positions as shown in the top portion of thedrawing. When the rotation ceases or slows to a rotational speed suchthat the centrifugal force is not sufficient to hold the teeth in theiropen or operative position, the gouging teeth 14 and 16 pivot abouttheir respective pivot points into recesses 10 and 12 and assume theirclosed or nonoperative position. It is to be seen, then, that onlycutting edge 4 of blade 2 will come in contact with the core elementupon which the roll of material is wrapped.

In FIGS. 3 and 4 there is shown a second embodiment of an improvedcutting and gouging tool in accordance with the inventive concept. Inthis embodiment gouging teeth 24 and 26 are shown in their respectiveoperative and closed position in recesses 28 and 30.

In this embodiment and with particular reference to FIG. 4 the gougingteeth are fabricated with an opposed pair of U- shaped channels, shownat 26 and 28, which are of slightly greater width than the width ofrotary blade 2. A limiting device such as a pin 32 or other stoppingdevice is provided on the gouging teeth to limit their outward movementwhich again is caused by the application of centrifugal force uponrotation of blade 2.

In this embodiment of the invention, as cutting tool 2 revolves in acounterclockwise direction, the gouging teeth are forced by thedeveloped centrifugal force into their open or operative position, whichis illustrated at the top of FIG. 3 by gouging tooth 24. When rotationceases or slows to a calculated centrifugal force resultant therefrom,the gouging teeth recede into the respective apertures so that cuttingedge 4 becomes the outer periphery of the device.

Turning now to FIG. 5, a third embodiment of the invention isillustrated. In this embodiment of the invention gouging teeth 34 and 36are permanently affixed to the outer periphery of blade 2, and againdiametrically opposed to each other for purposes of balance, by means ofpins 38. Pins 38 may be screws, rivets or any other desired means foraffixing the gouging teeth rigidly in their operative positions asshown; that is to say so that the cutting surfaces 40 and 42 of thegouging teeth extend radially outwardly from the cutting edge 4 of theblade. Preferably pins 38 are removable screws so that teeth 34 and 36may be removed for easier sharpening of both the teeth and the cuttingedge.

In this embodiment of the invention positioning means are provided toinsure that the cutting surfaces 40 and 42 of gouging teeth 34 and 36 donot contact the core element of the roll of material when the slicingoperation is completed and it is desired to sever the core element.

In this embodiment positioning means for insuring that only the cuttingedge of blade 2 contacts the core element comprises an electricallyoperated magnetic brake element coacting with a limit switch and a vaneelement disposed at some selected location in the power train of blade2. Operation of this electrical positioning means will insure thatrotation of blade 2 will be stopped in a position such that gougingteeth 34 and 36 do not contact the rotating core element resulting in aneat single slicing incision by the cutting edge of blade 2.

In the embodiment shown in H6. the power train for rota tion of blade 2comprises motor Aid mounted at a convenient location on carriage dowhose driving wheel dd drives driven wheel bil on journaled shaft 52 bymeans of belt M. Driven wheel fill is affixed to journaled shaft 52 andwhen driven causes the rotation of journaled shaft $2 in bearings 56 and5b, which similarly causes driving wheel bill to rotate, this wheelbeing loclted to journaled shaft 52 in the same manner as is drivenwheel fill as by loclting lteys, screws, or other means known to theart. Rotation of driving wheel or pulley so causes blade 2 to rotate,power being transmitted through belt or chain uh to pulley dd, attiredto blade 2.

Attached to carriage or frame member dd is an electrically operatedlimit switch as which is electrically connected to magnetic brahe fill,and the power source. Fiiredly attached to journaled shalt $2. is a vaneelement 73 which coacts with limit switch till. The arrangement is suchthat when vane 72 is positioned between the elements of limit switch ascurrent is applied to magnetic brake 5i, shutting off power to motor ddand locking shaft 52 from further rotation. The position of vane element72 is selected such that when shaft 552 is locked, gouging teeth 34 andas are in a position such that they do not contact the core element ofthe roll.

Thus when the material has been completely severed and 'the supportmeans for cutting and gouging blade 2 reaches a desired loweredposition, power to motor dd is interrupted by switching means and poweris supplied to bralting means 511 through limit switch so when vaneelement 72 is between its elements. Braking action is thus supplied tojournaled shaft $2 and it is slowed and finally locked in a positionsuch that only the slicing edge of blade 2 contacts the core element.

Other arrangements of this electrically operated positioning means may,of course, be designed without departing from the inventive concept.

it is to be understood, of course, that the positioning means for blade2 m contemplated in this embodiment may be adapted to the apparatus inany number of positions depending upon various factors such asconvenience, accessibility and the lilte. The one shown in FIG. 5 is tobe considered as illustrative only.

it is to be seen, therefore, that there is provided herewith a means andapparatus for completing in one operation a procedure which has beenhitherto accomplished by a much more complicated series of operations.The present apparatus relates to a device for severing built rolls ofmaterial by the coaction of a U-shaped cutting blade and a novel gougingtool which performs a double function; that of removing the wastematerial formed by the cutting blade and slicing the central core of theroll in the desired manner.

It will be appreciated, of course, that various mechanical ar rangementscan be designed for the apparatus of the invention and those familiarwith the art will at once appreciate that other embodiments of theinventive concept may be designed without, however, departing from theconcept of the invention.

To summarize briefly, the instant invention relates to an improvedrotary cutting and gouging tool which has a single beveled cutting edgeand which is equipped with at least one gouging tooth for removing wastematerial from a roll of material which is being sliced or severed bytwin edged cutting means such as a double edged U-shaped cutting blade.

The improved device of this invention is equipped with means forinsuring that only the single beveled cutting edge of the devicecontacts the central core element of the roll of material, thus insuringa smooth, even cut of the core. These insuring means include theapplication oi centrifugal force to place the cutting edges of thegouging teeth in operating position upon rotation'of the device andelectrical means in the nature of a limit switch operated brakingmechanism for insuring that the device is stopped in a position suchthat only the single beveled cutting edge will contact the central coreelement.

What i claim is:

.l. An apparatus for severing bulk rolls of a material rolled upon acentral core element which comprises:

means for rotation of said bull: roll of material;

adjustable twin edged slicing means for severing the material on saidbuilt roll in two adjacent incision;

means for rotating said twin edged slicing means;

cutting means for severing the core fitted with at least one gougingtooth for removing material from between said two adjacent incisions;

means for rotating said cutting means; and

positioning means for insuring that said gouging tooth does not contactsaid core element.

2. An apparatus according to claim 1 wherein said gouging tooth ispivotally attached to said cutting means.

It. An apparatus according to claim ll wherein said gouging tooth ismovably attached to said cutting means in grooved recesses therein.

d. An apparatus according to claim 1 wherein said cutting means isfitted with two diametrically opposed gouging teeth.

d. An apparatus according to claim ll wherein said cutting meanscomprises a circular single edged rotary cutting blade adapted with apair of diametrically opposed gouging teeth which are held in operativeposition extending radially outwardly from the cutting edge of saidrotary cutting blade by centrifugal force when said cutting blade is inrotary motion and which extends radially in from the cutting edge ofsaid rotary cutting blade when said cutting blade is at rest.

ti. An apparatus according to claim 5 wherein said gouging teeth arepivotally attached on said rotary cutting blade and pivot about saidpivot attachment into operative position when said cutting blade is inrotary motion and pivot about said pivot attachment into a nonoperativeposition in a recess in the outer periphery of said rotary cutting bladewhen said blade is at rest.

7. An apparatus according to claim 5 wherein said gouging teeth areslidably attached to the outer periphery of said rotary cutting bladeand slide radially outwardly into operative position when said blade isrotated and slide radially inwardly into a nonoperative position in arecess in the outer periphery of said blade when said blade is at rest.

8. An apparatus according to claim 1 wherein said cutting meanscomprises a single edged cutting blade having affixed thereto at leastone gouging tooth on the outer periphery thereof and positioning meansto prevent said gouging tooth from contacting a core structure uponwhich the material is rolled.

9. An apparatus according to claim 8 wherein said positioning meanscomprises pivoting means whereby said gouging tooth is pivotally mountedin a recess in the outer periphery of said cutting blade, centrifugalforce imparted to said tooth by rotary motion of said blade causing saidtooth to pivot into an operative position outwardly from said bladeedge.

illl. An apparatus according to claim 8 wherein said posi tioning meanscomprises slidable mounting means whereby said gouging tooth is radiallyslidably mounted in a recess in the outer periphery of said cuttingblade, centrifugal force imparted to said tooth by rotary motion of saidcutting blade causing said tooth to extend radially outwardly into anoperative position outwardly from said blade edge.

lll. An apparatus according to claim 8 wherein said positioning meanscomprises a braking device operative during the diminishing rotationrate of the cutting blade.

12. An apparatus according to claim h wherein said rotary cutting bladecomprises a single edged rotary cutting blade having a pair ofdiametrically opposed gouging teeth affixed to the outer peripherythereof and extending outwardly from the cutting edge thereof; a limitswitch operated braking device attached to the power train of said bladeto stop rotary motion of said rotary blade in a position such thatgouging teeth are not in contact with the core structure upon which saidroll of material is rolled.

113. An improved cutting and gouging device adapted to be used inconjunction with a U-shaped cutting blade for cutting rolls of materialwhich comprises a circular rotatable cutting blade fittedwith at leastone movable gouging tooth, said tooth moving into operating position bycentrifugal force generated by rotation of said blade.

14. A blade according to claim 13 wherein said gouging tooth ispivotally attached to said cutting blade.

15. A device according to claim 13 wherein said gouging tooth is movablyattached to said cutting blade in grooved recesses therein.

16. A device according to claim 13 wherein said cutting blade is fittedwith two diametrically opposed gouging teeth.

17. A cutting and gouging device adapted to be used for cutting rolls ofa material in conjunction with a U-shaped rotary cutting blade whichcomprises a circular single edged rotary cutting blade adapted with apair of diametrically opposed gouging teeth which are held in anoperative position extending radially outwardly from the cutting edge ofsaid rotary cutting blade by centrifugal force when said cutting bladeis in rotary motion and which extends radially inwardly from the cuttingedge of said rotary cutting blade when said cutting blade is at rest.

18. A device according to claim 17 wherein said gouging teeth arepivotally attached on said rotary cutting blade and pivot about saidpivot attachment into operative position when said cutting blade is inrotary motion and pivot about said pivot attachment into a nonoperativeposition in a recess in the outer periphery of said rotary cutting bladewhen said blade is at rest.

19. A device according to claim 17 wherein said gouging teeth areslidably attached to the outer periphery of said rotary cutting bladeand slide radially outwardly into operative position when said blade isrotated and slide radially inwardly into a nonoperative position in arecess in the outer periphery of said blade when said blade is at rest.

20. A gouging and cutting device adapted to remove waste material and tosever the core element of a roll of material when used in conjunctionwith a U-shaped rotary cutting blade which comprises a single edgedcutting blade having affixed thereto at least one gouging tooth on theouter periphery thereof and positioning means to prevent said gougingtooth from contacting a core structure upon which the material isrolled.

21. A device according to claim 20 wherein said positioning meanscomprises pivoting means whereby said gouging tooth is pivotally mountedin a recess in the outer periphery of said cutting blade, centrifugalforce imparted to said tooth by rotary motion of said blade causing saidtooth to pivot into an operative position outwardly from said bladeedge.

22. A device according to claim 20 wherein said positioning meanscomprises slidable mounting means whereby said gouging tooth is radiallyslidably mounted in a recess in the outer periphery of said cuttingblade, centrifugal force imparted to said tooth by rotary motion of saidcutting blade causing said tooth to extend radially outwardly into anoperative position outwardly from said blade edge.

23. A device according to claim 20 wherein said positioning meanscomprises a braking device operative during the diminishing rotationrate of the cutting blade.

24. An improved gouging and slicing wheel adapted to remove wastematerial and to sever the core element of a roll of material when usedin conjunction with a U-shaped double edged rotary cutting blade whichcomprises a single edged rotary cutting blade having a pair ofdiametrically opposed gouging teeth affixed to the outer peripherythereof and extending outwardly from the cutting edge thereof; anelectrically operated braking device disposed in the power train of saidblade to stop rotary motion of said rotary blade in a position such thatgouging teeth do not contact the core structure upon which said roll ofmaterial is rolled.

25. An apparatus for severing rolls of a material rolled upon a centralcore element which comprises:

means for rotation of said bulk roll of material;

adjustable twin edged slicing means for severing the material on saidbulk roll in two adjacent incisions;

means for propelling said twin edged slicing means;

an endless blade cutting means for severing the core fitted with atleast one gouging tooth for removing material from between said adjacentincisions; means for insuring that said gouging tooth does not contactsaid core element.

26. An apparatus according to claim 25 wherein said endless bladecutting means is equipped with a plurality of gouging teeth havingcutting edges perpendicular to their direction of travel and at leastone area of a single slicing edge for severing said central coreelement.

27. An apparatus according to claim 25 wherein said means for propellingsaid endless blade cutting means comprises a driving wheel and an idlerwheel.

1. An apparatus for severing bulk rolls of a material rolled upon acentral core element which comprises: means for rotation of said bulkroll of material; adjustable twin edged slicing means for severing thematerial on said bulk roll in two adjacent incision; means for rotatingsaid twin edged slicing means; cutting means for severing the corefitted with at least one gouging tooth for removing material frombetween said two adjacent incisions; means for rotating said cuttingmeans; and positioning means for insuring that said gouging tooth doesnot contact said core element.
 2. An apparatus according to claim 1wherein said gouging tooth is pivotally attached to said cutting means.3. An apparatus according to claim 1 wherein said gouging tooth ismovably attached to said cutting means in grooved recesses therein. 4.An apparatus according to claim 1 wherein said cutting means is fittedwith two diametrically opposed gouging teeth.
 5. An apparatus accordingto claim 1 wherein said cutting means comprises a circular single edgedrotary cutting blade adapted with a pair of diametrically opposedgouging teeth which are held in operative position extending radiallyoutwardly from the cutting edge of said rotary cutting blade bycentrifugal force when said cutting blade is in rotary motion and whichextends radially in from the cutting edge of said rotary cutting bladewhen said cutting blade is at rest.
 6. An apparatus according to claim 5wherein said gouging teeth are pivotally attached on said rotary cuttingblade and pivot about said pivot attachment into operative positioN whensaid cutting blade is in rotary motion and pivot about said pivotattachment into a nonoperative position in a recess in the outerperiphery of said rotary cutting blade when said blade is at rest.
 7. Anapparatus according to claim 5 wherein said gouging teeth are slidablyattached to the outer periphery of said rotary cutting blade and slideradially outwardly into operative position when said blade is rotatedand slide radially inwardly into a nonoperative position in a recess inthe outer periphery of said blade when said blade is at rest.
 8. Anapparatus according to claim 1 wherein said cutting means comprises asingle edged cutting blade having affixed thereto at least one gougingtooth on the outer periphery thereof and positioning means to preventsaid gouging tooth from contacting a core structure upon which thematerial is rolled.
 9. An apparatus according to claim 8 wherein saidpositioning means comprises pivoting means whereby said gouging tooth ispivotally mounted in a recess in the outer periphery of said cuttingblade, centrifugal force imparted to said tooth by rotary motion of saidblade causing said tooth to pivot into an operative position outwardlyfrom said blade edge.
 10. An apparatus according to claim 8 wherein saidpositioning means comprises slidable mounting means whereby said gougingtooth is radially slidably mounted in a recess in the outer periphery ofsaid cutting blade, centrifugal force imparted to said tooth by rotarymotion of said cutting blade causing said tooth to extend radiallyoutwardly into an operative position outwardly from said blade edge. 11.An apparatus according to claim 8 wherein said positioning meanscomprises a braking device operative during the diminishing rotationrate of the cutting blade.
 12. An apparatus according to claim 8 whereinsaid rotary cutting blade comprises a single edged rotary cutting bladehaving a pair of diametrically opposed gouging teeth affixed to theouter periphery thereof and extending outwardly from the cutting edgethereof; a limit switch operated braking device attached to the powertrain of said blade to stop rotary motion of said rotary blade in aposition such that gouging teeth are not in contact with the corestructure upon which said roll of material is rolled.
 13. An improvedcutting and gouging device adapted to be used in conjunction with aU-shaped cutting blade for cutting rolls of material which comprises acircular rotatable cutting blade fitted with at least one movablegouging tooth, said tooth moving into operating position by centrifugalforce generated by rotation of said blade.
 14. A blade according toclaim 13 wherein said gouging tooth is pivotally attached to saidcutting blade.
 15. A device according to claim 13 wherein said gougingtooth is movably attached to said cutting blade in grooved recessestherein.
 16. A device according to claim 13 wherein said cutting bladeis fitted with two diametrically opposed gouging teeth.
 17. A cuttingand gouging device adapted to be used for cutting rolls of a material inconjunction with a U-shaped rotary cutting blade which comprises acircular single edged rotary cutting blade adapted with a pair ofdiametrically opposed gouging teeth which are held in an operativeposition extending radially outwardly from the cutting edge of saidrotary cutting blade by centrifugal force when said cutting blade is inrotary motion and which extends radially inwardly from the cutting edgeof said rotary cutting blade when said cutting blade is at rest.
 18. Adevice according to claim 17 wherein said gouging teeth are pivotallyattached on said rotary cutting blade and pivot about said pivotattachment into operative position when said cutting blade is in rotarymotion and pivot about said pivot attachment into a nonoperativeposition in a recess in the outer periphery of said rotary cutting bladewhen said blade is at rest.
 19. A device according to claim 17 whereinsaid gouging teeth are slidably Attached to the outer periphery of saidrotary cutting blade and slide radially outwardly into operativeposition when said blade is rotated and slide radially inwardly into anonoperative position in a recess in the outer periphery of said bladewhen said blade is at rest.
 20. A gouging and cutting device adapted toremove waste material and to sever the core element of a roll ofmaterial when used in conjunction with a U-shaped rotary cutting bladewhich comprises a single edged cutting blade having affixed thereto atleast one gouging tooth on the outer periphery thereof and positioningmeans to prevent said gouging tooth from contacting a core structureupon which the material is rolled.
 21. A device according to claim 20wherein said positioning means comprises pivoting means whereby saidgouging tooth is pivotally mounted in a recess in the outer periphery ofsaid cutting blade, centrifugal force imparted to said tooth by rotarymotion of said blade causing said tooth to pivot into an operativeposition outwardly from said blade edge.
 22. A device according to claim20 wherein said positioning means comprises slidable mounting meanswhereby said gouging tooth is radially slidably mounted in a recess inthe outer periphery of said cutting blade, centrifugal force imparted tosaid tooth by rotary motion of said cutting blade causing said tooth toextend radially outwardly into an operative position outwardly from saidblade edge.
 23. A device according to claim 20 wherein said positioningmeans comprises a braking device operative during the diminishingrotation rate of the cutting blade.
 24. An improved gouging and slicingwheel adapted to remove waste material and to sever the core element ofa roll of material when used in conjunction with a U-shaped double edgedrotary cutting blade which comprises a single edged rotary cutting bladehaving a pair of diametrically opposed gouging teeth affixed to theouter periphery thereof and extending outwardly from the cutting edgethereof; an electrically operated braking device disposed in the powertrain of said blade to stop rotary motion of said rotary blade in aposition such that gouging teeth do not contact the core structure uponwhich said roll of material is rolled.
 25. An apparatus for severingrolls of a material rolled upon a central core element which comprises:means for rotation of said bulk roll of material; adjustable twin edgedslicing means for severing the material on said bulk roll in twoadjacent incisions; means for propelling said twin edged slicing means;an endless blade cutting means for severing the core fitted with atleast one gouging tooth for removing material from between said adjacentincisions; means for insuring that said gouging tooth does not contactsaid core element.
 26. An apparatus according to claim 25 wherein saidendless blade cutting means is equipped with a plurality of gougingteeth having cutting edges perpendicular to their direction of traveland at least one area of a single slicing edge for severing said centralcore element.
 27. An apparatus according to claim 25 wherein said meansfor propelling said endless blade cutting means comprises a drivingwheel and an idler wheel.